CN113420985A - Airplane digital maintenance electric tag system - Google Patents

Abstract

The invention relates to a digital maintenance electric sign system for an airplane, which comprises a dispatching module, a service module and a service module, wherein the dispatching module is used for assigning an electronic work order to be completed to different signing personnel; and the task module is used for enabling a person to obtain an electronic work order to be completed and entering the electronic signature module through the task module to complete signature. The electronic signature module is used for realizing signing, submitting and filing of the electronic work sheet by a signing personnel; and the review module is used for reviewing the signing situation of individuals and controlling and knowing the completion situation of the team electronic worksheet by the team leader. And the maintenance record modification module realizes a modification mode of hierarchical authority and prevents the data of the archived file from being tampered. And the risk management module is used for initiating risk assessment by a signer, and displaying and reminding risks in different grades in the electronic worksheet. And the electronic cross-connecting list management module is used for generating the electronic cross-connecting list and closing the electronic cross-connecting list. The invention has high working efficiency, strong maintenance risk management capability and strong control capability.

Description

Airplane digital maintenance electric tag system

Technical Field

The invention relates to the technical field of civil spacecraft maintenance, in particular to a digital maintenance electric tag system for an airplane.

Background

In recent years, with the continuous development of information technology application, the supporting function of science and technology in the field of civil aviation is continuously strengthened, and in the process of aircraft maintenance, an electronic signature system (an electronic signature system for short) is gradually popularized in the industry. Compared with the traditional working mode in which a worker signs by using a paper work card, the electronic signature system can realize closed-loop working more quickly; the collected data is more accurate and has higher visibility, the data management cost is lower, and the access and analysis to the data are easier; and the vicious accident that the maintenance records are lost or destroyed can not happen.

However, the electronic signature system in the prior art only proposes to replace the traditional paper work single card with the digital work single card for progress control, but does not propose further improvement on the digital work single card, so that the reliability of the digital work single card cannot be guaranteed, for the field with extremely high safety requirements of aircraft maintenance, the authenticity and the reliability of the work single card are difficult to control, the problems of wrong signing, missed signing and quality inconsistency are difficult to judge, the risk evaluation efficiency is low, data is difficult to share, and the application range of the electronic signature system in the driver is limited.

Disclosure of Invention

The invention provides a digital maintenance electric tag system for an airplane, which aims to overcome the defects in the technical background.

The technical problem solved by the invention is realized by adopting the following technical scheme:

aircraft digital maintenance electric sign system, including dispatch module, task module, electric sign module and recheck module:

the dispatching module is used for acquiring a work card total set in a certain task, dividing the acquired work card total set into a plurality of work card subsets according to work types, matching work cards in the work card subsets according to work contents to obtain work cards to be distributed, matching electronic work orders for each work card, matching authorization conditions of operating personnel with the work cards, and distributing the work cards to the task modules of the operating personnel; the operation steps of allocating the work card to the task module corresponding to the operating personnel are as follows:

step A, acquiring characteristic information of an operator in a shift, wherein the content of the characteristic information comprises the work type of the operator, and matching a subset according to the work type of the operator to obtain an allocable subset;

b, distributing the work cards which can be distributed into subsets to the personnel of the workers in the shift;

step C, setting personal attributes of the assigned operators: signers, participants, or inspectors;

the task module is used for enabling an operator to enter an inlet of the electronic signature module, enabling the operator with matched information to log in the corresponding task module, obtaining the distributed electronic work order through the distributed work card, and knowing the work task and the signature progress of the electronic work order corresponding to the work card; and entering the electric label module by selecting a single or a plurality of electronic worksheets;

the electronic signature module is used for carrying out electronic signature on the electronic work sheet, acquiring the total signing step number of the electronic work sheet, selecting a single step or multiple steps from the electronic work sheet for carrying out electronic signature, then inputting the working hours required for execution, inputting tool information, finished part numbers and serial numbers required by tasks, then signing all the steps in the work card single card, and converting relevant information into an electronic document for filing after the work card tasks are finished; the signing steps in the electronic work order in the work card are divided into a necessary signature checking step and an unnecessary signature checking step, when the electronic signature module is used for carrying out electronic signature operation, a signer and an inspector can pass the necessary signature checking step and simultaneously carry out electronic signature authentication, and the signer can carry out electronic signature authentication without checking the signature;

the review module is respectively carried out in the personal, shift and release stages.

As a further limitation, the way for the dispatching module to obtain the work card aggregate is SAP (systems applications and products in data processing).

By way of further limitation, the total set of work cards available in the dispatching module is a set of work cards which are not completed in the current day, and the completed work cards cannot be selected.

By way of further limitation, in the step a of the dispatch module, the characteristic information content further includes a work area and a work type.

As a further limitation, when the work card assignment is performed in step B of the dispatch module, the worker set in the shift is set first, the assignable subset is assigned to the shift meeting the characteristics, and then the work card in the assignable subset is assigned to the corresponding worker person in the shift.

As a further limitation, when the work card is matched in step B of the dispatch module, the matching method between the worker and the work card includes: the single worker card is matched by a single person, the single worker card is matched by a plurality of persons, and the single worker card is matched by a plurality of persons.

As a further limitation, when the work card is distributed in step B of the dispatching module, the risk management module performs matching authorization, when performing matching authorization, the risk management module performs matching authorization on the work card and the personnel of the operator, respectively, and when the work card characteristics and the personnel characteristics are not matched, the system refuses dispatching.

By way of further limitation, the defect information in the task module includes defect description information and defect picture information matched with the defect description information.

As a further limitation, the electronic worksheet feature information acquired by the electronic worksheet through the electronic signature module comprises signature progress information, job progress information and upload content information; the electronic work sheet characteristic information acquired by the SAP system comprises machine number, work type and work hour.

By way of further limitation, the verifier reviews the defect information filled in by the signer and generates an non-Routine work sheet card, NRC (non route card).

As a further limitation, when the electronic signature is performed in the electronic signature module, a personal certificate installed on the mobile device is called, the identification code of the personal certificate is acquired, the electronic signature is performed after the authentication is completed, and an electronic file including all signing node information, operation content, operation time and operator information is obtained after the signing is completed; when the electronic file is covered with the electronic signature information, selecting whether to modify the electronic file;

an operation step of not deleting the non-self when the deletion operation is performed; the operation of the user can be deleted by calling the electronic signature again, and the operation is changed into an unoperated step again.

As a further limitation, when signing operation in the necessary signing and deploying step is carried out in the electronic signature module, a signer firstly carries out electronic signature operation, and an inspector can carry out electronic signature operation only when the signer finishes the electronic signature operation;

when the electronic signature is deleted, the signer can delete the own electronic signature only by deleting the electronic signature by the verifier.

The invention has the advantages and beneficial effects that:

1. the airplane digital maintenance electric tag system can effectively track the airplane maintenance steps, can complete the progress according to the completion of the tracking step and the completion of the inspection step of each work card, and can complete the system verification only when the progress reaches 100%.

2. The personnel qualification system is accessed, the signer authorization is associated with the work card authorization, and the work card without authorization can not sign the airplane digital maintenance electric signature system, so that the phenomena of wrong signature and missed signature can be effectively avoided.

3. The electronic work card can realize singleton, and prevent the risk that wrong judgement caused.

4. The risk prompt data summarized by the maintenance data and the workers can be collected, the data can be automatically transferred in the computer system, the workload of the workers can be reduced, the risk evaluation efficiency is improved, and the data can be shared among all departments.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In this embodiment, the airplane digital maintenance electric label system includes a dispatching module, a task module, an electric label module, a review module, and a modification module.

The dispatching module is used for performing scheduled maintenance on the aircraft (airplane), and the task allocation method is based on an electronic signature system. The dispatching method is more accurate, and can effectively prevent unauthorized signature due to system assistance; the dispatching method is more convenient, and compared with manual paper work card distribution (which is time-consuming and labor-consuming), the dispatching method can improve the working efficiency. The work of the dispatching module comprises the following specific contents:

obtain the total set of work cards of SAP (systems applications and products in data processing).

The aggregate is divided into a number of work card subsets. Acquiring the characteristics of each work card in the total set: and the work type divides the subsets according to the work type.

The assigner assigns the work cards within these subsets to others. The distribution is carried out according to the following steps:

step A, acquiring the characteristics of the distributor: and matching the subsets to obtain assignable subsets of assigners.

And B, distributing the work card to the individual. Single or multiple work cards may be selected for distribution to a single or multiple persons. The assignment is made by first setting a set of people, then assigning the selected work card to the set of people (i.e., work team), and assigning the work card to each person in the set of people.

Step C, setting the attribute of the assigned person: signers, participants, or verifiers.

And B, in the distribution process of the step B, acquiring the characteristics of the work card to be distributed and the characteristics of the personnel to be distributed, and when the characteristics of the work card are not matched with the characteristics of the personnel, the dispatching cannot be finished.

And in the step A, the subsets are further divided through the work card characteristics, and the selection of the work card set is accelerated. The work card is characterized in that: region, type of work.

And B, acquiring a work card set which is not finished on the current day in the step A, wherein the finished work cards cannot be selected.

The task module is an entrance entering the electric sign module and also an entrance entering a standby paper newspaper worker, and is used as a standby mode of the electric sign worker card, and the paper work card signing mode needs to be kept continuously. The module can enable the signer to know the work task of the day more clearly and know the signing progress more intuitively. The generation speed of the non-Routine work single card NRC (non route card) is increased, the work efficiency is improved, and particularly, the defect information is displayed more visually by pictures.

The technical scheme comprises the following specific contents:

step 1, obtaining the electronic work list of the current day distributed by the login person after the work dispatching module.

And 2, selecting a plurality of or a single electronic worksheet to enter the electronic signature module.

And 3, selecting a single electronic worksheet to fill in 'defect information', further comprising the following steps of: defect description, defect picture.

And 4, selecting a single electronic work order to enter an electronic cross-connect order management module.

And 5, selecting a single electronic work sheet to enter a preview mode, wherein the preview mode can view the work description content but cannot realize electronic signature.

In step 1 of the task module solution, the registrars are divided into signer and verifier identities.

Acquiring the characteristics of each electronic work order through the electronic tag module: signing progress, not completed, uploaded.

Obtaining the characteristics of each electronic work order through an SAP system: machine number, work type and working hour.

Through the electronic tag module, the characteristics of the electronic worksheet are obtained: signing progress, unfinished, finished, uploaded and work, screening and displaying the electronic work order card with various feature combinations.

If the time of the day is 0, the electronic worksheet card disappears, and the electronic worksheet card needs to be selected again in the previous day to obtain the electronic worksheet.

In step 2 of the task module technical scheme, the conditions for entering the electric sign module by selecting a single or a plurality of work single cards are as follows:

obtaining, by the SAP system, characteristics of the selected electronic worksheet: and in the new version, the task module uses the obvious new version identification for reminding.

And acquiring the characteristics of the selected electronic worksheet through the electronic signature module: a history version. And selecting a new edition of work card to enter a preview mode to obtain the style of the old work card and the signed record.

And selecting a new edition worker card to enter the electric sign module to obtain a new worker card style. And acquiring the characteristics of the selected electronic worksheet through the electronic signature module: when signed, the new version mark disappears; acquiring the characteristics of the selected electronic worksheet: unsigned, new version identification disappears.

And when finishing, acquiring the current version as the latest version, otherwise, limiting finishing.

In step 2 of the task module technical scheme, a single or a plurality of work single cards are selected, and the condition for limiting entering the electric tag module is as follows:

obtaining, by the SAP system, characteristics of the selected electronic worksheet: split sequence number, split relationship. Splitting a natural number with a sequence number; the splitting relation is parallel connection or series connection "

And acquiring the characteristics of all the daughter cards, namely completed and unfinished, through the electronic signature module. When the feature is "in series" and the daughter card with the smaller selected daughter card serial number is "incomplete", entry into the electronic signature module is restricted.

And (3) selecting one or more work order cards in step (2) of the task module technical scheme, and acquiring the characteristics of the selected electronic work orders through an SAP system when entering the electric label module.

And in step 2 of the technical scheme of the task module, the characteristics of the selected electronic worksheet are obtained through the electronic tag module.

Further, step 3 of the task module technical scheme, the inspector identity is obtained, the defect information filled by the signer is audited, and nrc (non route card) is generated.

The electronic signature module has the main function of realizing electronic signature on an electronic work sheet, and is equivalent to a paper handwritten signature. Compared with a hand-written signature, the electronic signature has a reliable algorithm for preventing the countersigning, has a signature record which can not be tampered, and is more traceable. The labor reporting function can be used for inputting working hours of work more conveniently, so that the statistics of the working hours is more accurate.

The technical scheme comprises the following specific contents:

step 1, acquiring the total signing steps of the electronic work sheet, and selecting a single step or multiple steps from the total signing steps to carry out electronic signature.

And 2, recording the working hours required by the execution of the selection step.

And 3, completing the entry of the serial number of the task execution metering instrument and completing the replacement entry of the part number and the serial number of the part.

And 4, completing signing of all steps in the single card.

And 5, converting the electronic work card with the existing electronic signature into a PDF version for filing.

The specific implementation method in the step 1 of the technical scheme of the electronic tag module is as follows:

firstly, signature points of all steps of the electronic work single card are obtained, and all charts of the electronic work single card are obtained. The pictures can be displayed in a split screen mode with the steps.

The electronic signature module sets a function button for each signature point: confirmation, N/A, remark. The remarks may be: text, pictures, and video.

And operating the function button, but not simultaneously performing 'confirmation' and 'N/A' operations.

Acquiring the 'confirmation' or 'N/A' operand of the historical function button of the selected step, wherein the probability of the currently operated function button is as follows: when the number of the historical operation function buttons/the total number of the operation function buttons is less than or equal to 0.01, a warning is triggered to remind whether the operation is wrong, namely, if the 'confirm' button is operated currently, the historical confirm button is operated for 10 times, and the sum of confirmation and N/A is 1000 times, then the warning is triggered.

The selected step requires logging of a value.

1. And acquiring characteristic input numerical values, units and ranges of the input values.

2. If the numerical value or the unit is empty, the function button is operated to remind that the value is recorded or the unit is empty.

3. If the input value is beyond the range of the input requirement, the system inquires whether the input is beyond the range when the function button is operated. If so, completing the logging, otherwise, re-logging.

4. And recording the metering number after selecting the unit. The number is not entered and the function button cannot be operated.

The same signing point can support multiple persons to sign, namely 'one-step multiple signing'.

Acquiring the step characteristics of the electronic single card through a work card system: in order, the electric label module limits the jumping operation function buttons.

Sequential relationship of signer and verifier signing:

acquiring the characteristics of the work single card: and (4) ordering, and finishing the step signature to finish the verification step signature. Example (c): the first work card has 20 steps, wherein only 5 to 15 steps are necessary inspection steps; steps 1-4 and 16-20 are optional steps.

The signing method comprises the following steps: the signer can operate the function buttons of 1-7 steps and perform electronic signature authentication on all the operations → → → → the verifier needs to verify the 5-7 steps and call the electronic signature authentication → → → the signer can continue to operate the function buttons of 8-15 steps, the verifier needs to verify the 8-15 steps and perform electronic signature → → → the signer continues to operate the function buttons of 16-20 steps and perform electronic signature, and finally the electronic signature of all the steps is completed.

Signing the limitation:

A. the signer does not perform the step of electronic signature, which the verifier cannot verify and electronically sign.

B. The signer can operate the function buttons step by step 1-15, but cannot operate the function button step by step 16 unless step 5-15 verifies and electronically signs.

Acquiring the characteristics of the work single card: disorder. The signer operates the step function button unaffected by whether the mandatory check step is complete.

Calling the personal electronic signature, and indicating that all operations are finished by the user and not finished by other people, wherein the operation of calling the personal electronic signature comprises the following steps: firstly, acquiring a personal certificate installed on the mobile equipment, then acquiring an identification code of the personal certificate, such as a password or a portrait, and completing authentication and signature through the identification code of the personal certificate, and after completing electronic signature, signing all displays at a signing point: "operation" + name + time.

In the present embodiment, the operation procedure of the non-self person cannot be deleted. The operation of the user can be deleted by calling the electronic signature again, and the operation is changed into an unoperated step again. When the steps are necessary inspection steps, the signer can delete the own electronic signature only by deleting the electronic signature of the inspector.

All operations and modifications are logged.

Further, for step 2, the method for recording the working hours is as follows:

firstly, acquiring the signer name and the participator name of the single card in the dispatching module.

Selecting signer name and participator name, and inputting the completed working hours. In the process, the total number of persons in the SAP in the room is preferably acquired, and the average total labor time value is set, wherein the average person value = total labor time/total number of persons.

The method comprises the following steps of completing the entry of the serial number of the measuring instrument and the entry of the part number and the serial number of the replacing part, and comprises the following specific steps:

1. and finishing the input of the metering number, judging whether the metering number exists and lending, and otherwise, reminding.

2. The method for completing the recording of the part number and the serial number of the replacement part comprises the following steps:

2.1, acquiring the part number and the serial number list of the navigation material received by the single card through system software.

2.2 selecting the list data to perform dismounting and changing piece entry.

Further, signing all steps in the single card, finishing the electronic work card and filling the finishing time, wherein the limiting conditions are as follows: firstly, no work reporting record exists; and secondly, receiving data with sequence numbers in the aviation material list, wherein the data with sequence numbers are not completely disassembled and replaced for data entry.

Further, the method for limiting the completion of the work card comprises the following steps:

1. and acquiring the work card characteristics and the total number of work card steps.

2. And acquiring the total number of the signature points, the signature points including the worker signature points and the inspector signature points in the step.

3. The system verifies that all signature points have signature data.

4. If the signature point has no signature data, the system limits the completion.

The method comprises the steps that an electronic work card with an existing electronic signature is converted into a PDF version for filing, all input values and signed data are obtained during filing operation, then an original electronic work card is obtained, the electronic work card is combined to generate the electronic work card with the input values and the signed data, and the electronic work card is converted into PDF; and selecting the PDF version of the electronic work card with the signature data, the uploaded PDF version and the old PDF version with the signature data to generate the PDF which is finally filed.

Other functions are as follows: uploading attachments can be selected, and the format of the uploading attachments is supported to be PDF; the steps may also be selected for bookmarking.

A review module: the reason why the review module is arranged is that each operator can sign a large number of work single cards every day, incorrect signing can bring serious consequences, if the single card requirement is executed incorrectly, the error is serious, and if the single card is signed only incorrectly, the problem of local emphasis on rectification is also solved. However, in the face of a large number of work order cards and their steps, the review module can assist in the resolution. The review module can be divided into personal review, team review and release review. The person reviews the maintenance record signed by the person, and the maintenance record is ensured to be in accordance with the specification; the team group review can be used for timely tracking the working progress of workers with the team; the clearance review can be used for confirming whether the work sheet card is finished before the clearance personnel perform clearance.

And selecting an executed task book during the rechecking, acquiring a work single card list needing to be rechecked according to the screening conditions, and then selecting a required work card from the work single card list for rechecking. In this embodiment, the conditions for screening in the work list card list are as follows: work type, work card state, PDF uploading, signer, signing date, checking date and whether to dispatch work.

When the person is rechecked, the method comprises the following steps:

1. the record is signed in the reexamination, and the items are as follows: N/A, remarks, recorded values, stars and multiple labels. The implementation scheme is as follows:

selecting more or one work card.

And entering work card signing record for rechecking.

And selecting items (N/A), remarks, recorded values, stars and multiple labels).

And fourthly, fast positioning and switching among different single cards.

2. And (4) rechecking the defect records of the work card:

selecting more or one work card.

Entering the defect record of the work card.

Obtaining a recording list of all push defects, wherein the list further reflects the information of the items: defect description, whether to open NRC.

3. Accessory for remarking of rechecking work card

Selecting more or one work card.

And entering a work card remark accessory.

And obtaining the picture and video attachment of all the work cards.

When the team rechecks, the rechecking is carried out according to the following steps:

1. and screening the work types to obtain corresponding work cards.

2. And acquiring the work progress of the work card.

When the recheck is released, the recheck is carried out according to the following steps:

and screening PDF uploading, and if a PDF work card is not uploaded, limiting releasing.

Sixthly, modifying module

Repair record modification is a discreet and rigorous process, and paper modification must be signed. For an electronic signature card, the modification module is specially designed for preventing tampering.

Step one, entering a modification module to obtain a maintenance task book.

And step two, acquiring the single card to be modified.

Step three, filling in the reason for modification

Step four, submitting the application

Step five, obtaining approval

And step six, modifying and finishing, and then uploading the PDF again.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. Aircraft digital maintenance electric sign system, its characterized in that, including dispatch module, task module, electric sign module and recheck module:

the dispatching module is used for acquiring a work card total set in a certain task, dividing the acquired work card total set into a plurality of work card subsets according to work types, matching work cards in the work card subsets according to work contents to obtain work cards to be distributed, matching electronic work orders for each work card, matching authorization conditions of operating personnel with the work cards, and distributing the work cards to the task modules of the operating personnel; the operation steps of allocating the work card to the task module corresponding to the operating personnel are as follows:

step A, acquiring characteristic information of an operator in a shift, wherein the content of the characteristic information comprises the work type of the operator, and matching a subset according to the work type of the operator to obtain an allocable subset;

b, distributing the work cards which can be distributed into subsets to the personnel of the workers in the shift;

step C, setting personal attributes of the assigned operators: signers, participants, or inspectors;

the task module is used for enabling an operator to enter an inlet of the electronic signature module, enabling the operator with matched information to log in the corresponding task module, obtaining the distributed electronic work order through the distributed work card, and knowing the work task and the signature progress of the electronic work order corresponding to the work card; and entering the electric label module by selecting a single or a plurality of electronic worksheets;

the electronic signature module is used for carrying out electronic signature on the electronic work sheet, acquiring the total signing step number of the electronic work sheet, selecting a single step or multiple steps from the electronic work sheet for carrying out electronic signature, then inputting the working hours required for execution, inputting tool information, finished part numbers and serial numbers required by tasks, then signing all the steps in the work card single card, and converting relevant information into an electronic document for filing after the work card tasks are finished; the signing steps in the electronic work order in the work card are divided into a necessary signature checking step and an unnecessary signature checking step, when the electronic signature module is used for carrying out electronic signature operation, a signer and an inspector can pass the necessary signature checking step and simultaneously carry out electronic signature authentication, and the signer can carry out electronic signature authentication without checking the signature;

the review module is respectively carried out in the personal, shift and release stages.

2. The aircraft digital service electric sign system as claimed in claim 1, wherein the way for the dispatching module to obtain the total set of work cards is an SAP system.

3. The aircraft digital service tag system as claimed in claim 1, wherein the total set of available work cards in the dispatch module is a set of unfinished work cards on the day and a finished work card cannot be selected.

4. The aircraft digital service electric sign system according to claim 1, wherein when the worker card assignment is performed in step B of the dispatching module, the worker set in the shift is set, the assignable subset is assigned to the shift meeting the characteristics, and then the worker card in the assignable subset is assigned to the corresponding worker person in the shift.

5. The aircraft digital maintenance electric sign system according to claim 1, wherein when the work card is matched in the step B of the dispatching module, the matching mode between the operator and the work card comprises: the single worker card is matched by a single person, the single worker card is matched by a plurality of persons, and the single worker card is matched by a plurality of persons.

6. The aircraft digital service tag system of claim 1, wherein the operation of limiting completion of the work card comprises:

firstly, acquiring work card characteristics and the total number of work card steps;

acquiring the total number of the signature points, the signature points of a signature point contractor and the signature points of an inspector in the step;

checking that all signature points have signature data by the system;

if the signature point has no signature data, the system limits to complete; .

7. The aircraft digital maintenance electric sign system according to claim 1, wherein the electronic work sheet characteristic information acquired by the electronic work sheet through the electronic sign module comprises signing progress information, work progress information and uploading content information; the electronic work sheet characteristic information acquired by the SAP system comprises machine number, work type and work hour.

8. The aircraft digital maintenance electric label system according to claim 1, characterized in that in the signing process, wrong label verification is performed, and the verification is performed by using the recorded value as a basis in the following way:

firstly, acquiring the characteristic input value, and recording a numerical value, a unit and a range;

if the numerical value or unit is empty, reminding to input the value or unit is empty when the function button is operated;

thirdly, if the input value exceeds the range of the input requirement, the system inquires whether the input is out of range or not when the function button is operated;

if yes, completing logging, otherwise logging again;

fourthly, the metering number is input after the unit is selected, and the functional button cannot be operated if the number is not input.

9. The aircraft digital maintenance electric sign system according to claim 1, wherein when electronic signature is performed in the electric sign module, a personal certificate installed on a mobile device is called, an identification code of the personal certificate is acquired, and then electronic signature is performed after authentication is completed, and an electronic file including all signing node information, operation content, operation time and operator information is obtained after signing is completed; when the electronic file is covered with the electronic signature information, selecting whether to modify the electronic file;

an operation step of not deleting the non-self when the deletion operation is performed; the operation of the user can be deleted by calling the electronic signature again, and the operation is changed into an unoperated step again.

10. The aircraft digital maintenance electric label system according to claim 1, characterized in that when the signing operation of the necessary checking and signing step is performed in the electric label module, the signer performs the electric label operation first, and the inspector can perform the electric label operation only when the signer completes the electric label operation;

when the electronic signature is deleted, the signer can delete the own electronic signature only by deleting the electronic signature by the verifier.